Home / 83,560.22-115,312.78-45,319.62

Finding the Fourth Proportional to 83,560.22, 115,312.78 and 45,319.62

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Solution

The fourth proportional to 83,560.22, 115,312.78 and 45,319.62 is: 62,540.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,560.22 : 115,312.78 = 45,319.62 : x
  2. Step 2: Convert to fraction form
    83,560.22/115,312.78 = 45,319.62/x
  3. Step 3: Cross multiply
    83,560.22x = 115,312.78 × 45,319.62
  4. Step 4: Simplify right side
    83,560.22x = 5,225,931,019.99
  5. Step 5: Solve for x
    x = 5,225,931,019.99/83,560.22
  6. Step 6: Final answer
    x = 62,540.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.